Did anyone start this journey with pre-existing anxiety/depression??

Hello, I do realize there is a mental health board for these sorts of questions but there doesn't seem to be a whole lot of traffic there so I thought I'd post this here.
I am restarting my journey due to insurance problems the first time. Last time I passed all the psych stuff just fine, my personal psych doc and the bariatric team were all in agreement that I was stable enough for the surgery.
Great right? Sorta, except now I'm the one nervous about how this process will effect my mental health.
I have a history of disasociation, generalized anxiety, depression, and mood issues.
I have been medicated for these issues for about 12yrs, but as I'm sure you know, medication doesn't make these conditions non existent.
I'm nervous, that #1 the surgery itself, anesthesia etc will mess with my head and #2 that during the recovery I will fall into a depression along with anxiety attacks worrying about my healing process and being in pain.
Don't get me wrong, I'm a strong woman, I've endured alot but anyone who's experienced anxiety attacks knows how bad they can break a person down.

So what do you all think? Is it normal to have these concerns? Have others dealt with anxiety attacks/dissociation and gone through with surgery?
I'm open to all opinions, don't worry about hurting my feelings.
Thanx so much for reading!

I certainly think it's normal for you to have these concerns.  I think your obviously in tune with yourself if your wondering about the effect of everything.  Surgery effects everyone different and meds after will be absorbed different depending on where in the body they break down (stomach, small intestine).  Have you spoken with your surgeon about these recently?

The only ancidotale bit of info I could pass on was for me I had doubts leading into the surgery (if, what kind) and it seems to be normal.  But at this point I can tell you that even with the minor hiccups I've had I stand by my desicion to have surgery.  I talked it over at noisium with all my docs... nero, OB, Physc, primary, GI, my husband, good friends...  I made pro's and cons list's and there way more pro's than cons.

Good luck finding answers to your questions.  I wish I could be of more help.

 I'm manic-depressive and had been on meds for it for 10 years prior to my RNY.  The RNY saved my life since I was super morbidly obese and weighed 571 lbs.  I'm now about 335.  I'm 61 and had my first RNY on 11-14-2000 and a revision RNY on 01-21-2005 ( due to a staple-line disruption).  You must realize that you will be dealing with your mental illness for the rest of your life.  It is normal to be anxious before major surgery.

However, those were two times in my life when I was calm.  I'm not pushing any religion, but prayer does help calm the nerves.  I'm Roman Catholi and had priests give me the Sacrament of the Sick before each of my surgeries.  My first surgeon scoffed at my mention of it.  I told him to do his job and I just wanted to be at peace with my God before having the surgery. 

Thanx everyone for taking the time to answer my post, it is so comforting to feel understood.

And sjbob, we're on the same page there buddy. I have faith that god will be the one and only guiding me through this process. You know, as a human being I'm tempted to continuously pray 'God please let this surgery happen, let them approve me, let the process be quick and as pain free as possible. Please please let me get approved again lord'. BUT this time I realized, if gods not playing a part in making this all come together then I'm gonna run into many rough times along this journey. So this time my prayer is, 'Lord please keep me safe on the journey I am about to endure, and lord please let your will be done regarding this surgery. Lord Jesus, I know you know me and my life better than anyone to ever exist and should you foresee this surgery causing further pain and misstep in my life then I am trusting you to intervene. No bitterness or regret will be felt lord, because you are much better off in charge than I. So again lord, let your will be done. In Jesus name, amen'

I had problems with anxiety and had a bad attack while i was in recovery the day after surgery and unfortunatly i was on morphine at the time wich wasnt helping with the pain at all.. so the effect--> I was unintentionally sucking in my stomach which caused alot of pain and stress..
All i can say is if you have support from others that gets you a long way! especially if there will be someone by your side for a good amount of the time (that you know). And to BREATH and walk.. That wil make it X1000 times better.. im not very far out so i cant offer much help but good luck!